The ideas and objectives behind a small scientific satellite for URM (Ulysses Reference Mission) are described. As a complementary element to the relatively big and complex missions there is a worldwide trend to small and ingenious missions. Particular interest was to probe the idea of a small complement to the big interplanetary mission Ulysses. The original idea within the former ISPM (International Solar Polar Mission) program was the simultaneous investigation of both solar poles with two solar probes (one from ESA and one from NASA). But in 1981 NASA stopped its contribution for cost reasons. Therefore the small satellite URM, carrying the five main Ulysses instruments on board, is supposed to compensate partly for the cancelled U.S. spacecraft by performing scientific baseline measurements.
Concept of a Small Satellite for URM
1992
3 pages
Report
No indication
English
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